Özet:

This study aims to describe the post-certification performance of mathematics teachers of vocational high schools in Wonosobo Regency Central Java province of Indonesia. This was a descriptive study with qualitative and quantitative approach (mixed method). The subjects were all mathematics teachers of vocational high schools in Wonosobo Regency who have passed the teachers certification. The instrument consisted of teachers’ self-assessment questionnaires, observation sheets, interview guide and sheets of studies document. Data analysis techniques used with categorized performance trends into 5 groups: Very Good, Good, Fair, Poor, and Very Poor. The resuls of research are the postcertification performance of mathematics teachers of vocational high schools in Wonosobo regency on planning the lesson is in the good category; the post-certification performance of mathematics teachers of vocational high schools in Wonosobo regency on the learning implementation is in the good category; the post-certification performance of mathematics teachers of vocational high schools in Wonosobo regency on the learning assessment is in the very good category; the post-certification performance of mathematics teachers of vocational high schools in Wonosobo regency in the professional development is in the very poor category and needs to be improved.

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